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1 | package Pod::Functions; |
2 | use strict; | |
3 | ||
4 | =head1 NAME | |
5 | ||
6 | Pod::Functions - Group Perl's functions a la perlfunc.pod | |
7 | ||
8 | =head1 SYNOPSIS | |
9 | ||
10 | use Pod::Functions; | |
11 | ||
12 | my @misc_ops = @{ $Kinds{ 'Misc' } }; | |
13 | my $misc_dsc = $Type_Description{ 'Misc' }; | |
14 | ||
15 | or | |
16 | ||
17 | perl /path/to/lib/Pod/Functions.pm | |
18 | ||
19 | This will print a grouped list of Perl's functions, like the | |
20 | L<perlfunc/"Perl Functions by Category"> section. | |
21 | ||
22 | =head1 DESCRIPTION | |
23 | ||
24 | It exports the following variables: | |
25 | ||
26 | =over 4 | |
27 | ||
28 | =item %Kinds | |
29 | ||
30 | This holds a hash-of-lists. Each list contains the functions in the category | |
31 | the key denotes. | |
32 | ||
33 | =item %Type | |
34 | ||
35 | In this hash each key represents a function and the value is the category. | |
36 | The category can be a comma separated list. | |
37 | ||
38 | =item %Flavor | |
39 | ||
40 | In this hash each key represents a function and the value is a short | |
41 | description of that function. | |
42 | ||
43 | =item %Type_Description | |
44 | ||
45 | In this hash each key represents a category of functions and the value is | |
46 | a short description of that category. | |
47 | ||
48 | =item @Type_Order | |
49 | ||
50 | This list of categories is used to produce the same order as the | |
51 | L<perlfunc/"Perl Functions by Category"> section. | |
52 | ||
53 | =back | |
54 | ||
55 | =head1 CHANGES | |
56 | ||
57 | 1.02 20020813 <abe@ztreet.demon.nl> | |
58 | de-typo in the SYNOPSIS section (thanks Mike Castle for noticing) | |
59 | ||
60 | 1.01 20011229 <abe@ztreet.demon.nl> | |
61 | fixed some bugs that slipped in after 5.6.1 | |
62 | added the pod | |
63 | finished making it strict safe | |
64 | ||
65 | 1.00 ?? | |
66 | first numbered version | |
67 | ||
68 | =cut | |
69 | ||
70 | our $VERSION = '1.03'; | |
71 | ||
72 | require Exporter; | |
73 | ||
74 | our @ISA = qw(Exporter); | |
75 | our @EXPORT = qw(%Kinds %Type %Flavor %Type_Description @Type_Order); | |
76 | ||
77 | our(%Kinds, %Type, %Flavor); | |
78 | ||
79 | our %Type_Description = ( | |
80 | 'ARRAY' => 'Functions for real @ARRAYs', | |
81 | 'Binary' => 'Functions for fixed length data or records', | |
82 | 'File' => 'Functions for filehandles, files, or directories', | |
83 | 'Flow' => 'Keywords related to control flow of your perl program', | |
84 | 'HASH' => 'Functions for real %HASHes', | |
85 | 'I/O' => 'Input and output functions', | |
86 | 'LIST' => 'Functions for list data', | |
87 | 'Math' => 'Numeric functions', | |
88 | 'Misc' => 'Miscellaneous functions', | |
89 | 'Modules' => 'Keywords related to perl modules', | |
90 | 'Network' => 'Fetching network info', | |
91 | 'Objects' => 'Keywords related to classes and object-orientedness', | |
92 | 'Process' => 'Functions for processes and process groups', | |
93 | 'Regexp' => 'Regular expressions and pattern matching', | |
94 | 'Socket' => 'Low-level socket functions', | |
95 | 'String' => 'Functions for SCALARs or strings', | |
96 | 'SysV' => 'System V interprocess communication functions', | |
97 | 'Time' => 'Time-related functions', | |
98 | 'User' => 'Fetching user and group info', | |
99 | 'Namespace' => 'Keywords altering or affecting scoping of identifiers', | |
100 | ); | |
101 | ||
102 | our @Type_Order = qw{ | |
103 | String | |
104 | Regexp | |
105 | Math | |
106 | ARRAY | |
107 | LIST | |
108 | HASH | |
109 | I/O | |
110 | Binary | |
111 | File | |
112 | Flow | |
113 | Namespace | |
114 | Misc | |
115 | Process | |
116 | Modules | |
117 | Objects | |
118 | Socket | |
119 | SysV | |
120 | User | |
121 | Network | |
122 | Time | |
123 | }; | |
124 | ||
125 | while (<DATA>) { | |
126 | chomp; | |
127 | s/#.*//; | |
128 | next unless $_; | |
129 | my($name, $type, $text) = split " ", $_, 3; | |
130 | $Type{$name} = $type; | |
131 | $Flavor{$name} = $text; | |
132 | for my $t ( split /[,\s]+/, $type ) { | |
133 | push @{$Kinds{$t}}, $name; | |
134 | } | |
135 | } | |
136 | ||
137 | close DATA; | |
138 | ||
139 | my( $typedesc, $list ); | |
140 | unless (caller) { | |
141 | foreach my $type ( @Type_Order ) { | |
142 | $list = join(", ", sort @{$Kinds{$type}}); | |
143 | $typedesc = $Type_Description{$type} . ":"; | |
144 | write; | |
145 | } | |
146 | } | |
147 | ||
148 | format = | |
149 | ||
150 | ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< | |
151 | $typedesc | |
152 | ~~ ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< | |
153 | $typedesc | |
154 | ~~ ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< | |
155 | $list | |
156 | . | |
157 | ||
158 | 1; | |
159 | ||
160 | __DATA__ | |
161 | -X File a file test (-r, -x, etc) | |
162 | abs Math absolute value function | |
163 | accept Socket accept an incoming socket connect | |
164 | alarm Process schedule a SIGALRM | |
165 | atan2 Math arctangent of Y/X in the range -PI to PI | |
166 | bind Socket binds an address to a socket | |
167 | binmode I/O prepare binary files for I/O | |
168 | bless Objects create an object | |
169 | caller Flow,Namespace get context of the current subroutine call | |
170 | chdir File change your current working directory | |
171 | chmod File changes the permissions on a list of files | |
172 | chomp String remove a trailing record separator from a string | |
173 | chop String remove the last character from a string | |
174 | chown File change the owership on a list of files | |
175 | chr String get character this number represents | |
176 | chroot File make directory new root for path lookups | |
177 | close I/O close file (or pipe or socket) handle | |
178 | closedir I/O close directory handle | |
179 | connect Socket connect to a remote socket | |
180 | continue Flow optional trailing block in a while or foreach | |
181 | cos Math cosine function | |
182 | crypt String one-way passwd-style encryption | |
183 | dbmclose Objects,I/O breaks binding on a tied dbm file | |
184 | dbmopen Objects,I/O create binding on a tied dbm file | |
185 | defined Misc test whether a value, variable, or function is defined | |
186 | delete HASH deletes a value from a hash | |
187 | die I/O,Flow raise an exception or bail out | |
188 | do Flow,Modules turn a BLOCK into a TERM | |
189 | dump Misc,Flow create an immediate core dump | |
190 | each HASH retrieve the next key/value pair from a hash | |
191 | endgrent User be done using group file | |
192 | endhostent User be done using hosts file | |
193 | endnetent User be done using networks file | |
194 | endprotoent Network be done using protocols file | |
195 | endpwent User be done using passwd file | |
196 | endservent Network be done using services file | |
197 | eof I/O test a filehandle for its end | |
198 | eval Flow,Misc catch exceptions or compile and run code | |
199 | exec Process abandon this program to run another | |
200 | exists HASH test whether a hash key is present | |
201 | exit Flow terminate this program | |
202 | exp Math raise I<e> to a power | |
203 | fcntl File file control system call | |
204 | fileno I/O return file descriptor from filehandle | |
205 | flock I/O lock an entire file with an advisory lock | |
206 | fork Process create a new process just like this one | |
207 | format I/O declare a picture format with use by the write() function | |
208 | formline Misc internal function used for formats | |
209 | getc I/O get the next character from the filehandle | |
210 | getgrent User get next group record | |
211 | getgrgid User get group record given group user ID | |
212 | getgrnam User get group record given group name | |
213 | gethostbyaddr Network get host record given its address | |
214 | gethostbyname Network get host record given name | |
215 | gethostent Network get next hosts record | |
216 | getlogin User return who logged in at this tty | |
217 | getnetbyaddr Network get network record given its address | |
218 | getnetbyname Network get networks record given name | |
219 | getnetent Network get next networks record | |
220 | getpeername Socket find the other end of a socket connection | |
221 | getpgrp Process get process group | |
222 | getppid Process get parent process ID | |
223 | getpriority Process get current nice value | |
224 | getprotobyname Network get protocol record given name | |
225 | getprotobynumber Network get protocol record numeric protocol | |
226 | getprotoent Network get next protocols record | |
227 | getpwent User get next passwd record | |
228 | getpwnam User get passwd record given user login name | |
229 | getpwuid User get passwd record given user ID | |
230 | getservbyname Network get services record given its name | |
231 | getservbyport Network get services record given numeric port | |
232 | getservent Network get next services record | |
233 | getsockname Socket retrieve the sockaddr for a given socket | |
234 | getsockopt Socket get socket options on a given socket | |
235 | glob File expand filenames using wildcards | |
236 | gmtime Time convert UNIX time into record or string using Greenwich time | |
237 | goto Flow create spaghetti code | |
238 | grep LIST locate elements in a list test true against a given criterion | |
239 | hex Math,String convert a string to a hexadecimal number | |
240 | import Modules,Namespace patch a module's namespace into your own | |
241 | index String find a substring within a string | |
242 | int Math get the integer portion of a number | |
243 | ioctl File system-dependent device control system call | |
244 | join LIST join a list into a string using a separator | |
245 | keys HASH retrieve list of indices from a hash | |
246 | kill Process send a signal to a process or process group | |
247 | last Flow exit a block prematurely | |
248 | lc String return lower-case version of a string | |
249 | lcfirst String return a string with just the next letter in lower case | |
250 | length String return the number of bytes in a string | |
251 | link File create a hard link in the filesytem | |
252 | listen Socket register your socket as a server | |
253 | local Misc,Namespace create a temporary value for a global variable (dynamic scoping) | |
254 | localtime Time convert UNIX time into record or string using local time | |
255 | lock Threads get a thread lock on a variable, subroutine, or method | |
256 | log Math retrieve the natural logarithm for a number | |
257 | lstat File stat a symbolic link | |
258 | m// Regexp match a string with a regular expression pattern | |
259 | map LIST apply a change to a list to get back a new list with the changes | |
260 | mkdir File create a directory | |
261 | msgctl SysV SysV IPC message control operations | |
262 | msgget SysV get SysV IPC message queue | |
263 | msgrcv SysV receive a SysV IPC message from a message queue | |
264 | msgsnd SysV send a SysV IPC message to a message queue | |
265 | my Misc,Namespace declare and assign a local variable (lexical scoping) | |
266 | next Flow iterate a block prematurely | |
267 | no Modules unimport some module symbols or semantics at compile time | |
268 | package Modules,Objects,Namespace declare a separate global namespace | |
269 | prototype Flow,Misc get the prototype (if any) of a subroutine | |
270 | oct String,Math convert a string to an octal number | |
271 | open File open a file, pipe, or descriptor | |
272 | opendir File open a directory | |
273 | ord String find a character's numeric representation | |
274 | our Misc,Namespace declare and assign a package variable (lexical scoping) | |
275 | pack Binary,String convert a list into a binary representation | |
276 | pipe Process open a pair of connected filehandles | |
277 | pop ARRAY remove the last element from an array and return it | |
278 | pos Regexp find or set the offset for the last/next m//g search | |
279 | print I/O output a list to a filehandle | |
280 | printf I/O output a formatted list to a filehandle | |
281 | push ARRAY append one or more elements to an array | |
282 | q/STRING/ String singly quote a string | |
283 | qq/STRING/ String doubly quote a string | |
284 | quotemeta Regexp quote regular expression magic characters | |
285 | qw/STRING/ LIST quote a list of words | |
286 | qx/STRING/ Process backquote quote a string | |
287 | qr/STRING/ Regexp Compile pattern | |
288 | rand Math retrieve the next pseudorandom number | |
289 | read I/O,Binary fixed-length buffered input from a filehandle | |
290 | readdir I/O get a directory from a directory handle | |
291 | readline I/O fetch a record from a file | |
292 | readlink File determine where a symbolic link is pointing | |
293 | readpipe Process execute a system command and collect standard output | |
294 | recv Socket receive a message over a Socket | |
295 | redo Flow start this loop iteration over again | |
296 | ref Objects find out the type of thing being referenced | |
297 | rename File change a filename | |
298 | require Modules load in external functions from a library at runtime | |
299 | reset Misc clear all variables of a given name | |
300 | return Flow get out of a function early | |
301 | reverse String,LIST flip a string or a list | |
302 | rewinddir I/O reset directory handle | |
303 | rindex String right-to-left substring search | |
304 | rmdir File remove a directory | |
305 | s/// Regexp replace a pattern with a string | |
306 | scalar Misc force a scalar context | |
307 | seek I/O reposition file pointer for random-access I/O | |
308 | seekdir I/O reposition directory pointer | |
309 | select I/O reset default output or do I/O multiplexing | |
310 | semctl SysV SysV semaphore control operations | |
311 | semget SysV get set of SysV semaphores | |
312 | semop SysV SysV semaphore operations | |
313 | send Socket send a message over a socket | |
314 | setgrent User prepare group file for use | |
315 | sethostent Network prepare hosts file for use | |
316 | setnetent Network prepare networks file for use | |
317 | setpgrp Process set the process group of a process | |
318 | setpriority Process set a process's nice value | |
319 | setprotoent Network prepare protocols file for use | |
320 | setpwent User prepare passwd file for use | |
321 | setservent Network prepare services file for use | |
322 | setsockopt Socket set some socket options | |
323 | shift ARRAY remove the first element of an array, and return it | |
324 | shmctl SysV SysV shared memory operations | |
325 | shmget SysV get SysV shared memory segment identifier | |
326 | shmread SysV read SysV shared memory | |
327 | shmwrite SysV write SysV shared memory | |
328 | shutdown Socket close down just half of a socket connection | |
329 | sin Math return the sine of a number | |
330 | sleep Process block for some number of seconds | |
331 | socket Socket create a socket | |
332 | socketpair Socket create a pair of sockets | |
333 | sort LIST sort a list of values | |
334 | splice ARRAY add or remove elements anywhere in an array | |
335 | split Regexp split up a string using a regexp delimiter | |
336 | sprintf String formatted print into a string | |
337 | sqrt Math square root function | |
338 | srand Math seed the random number generator | |
339 | stat File get a file's status information | |
340 | study Regexp optimize input data for repeated searches | |
341 | sub Flow declare a subroutine, possibly anonymously | |
342 | substr String get or alter a portion of a stirng | |
343 | symlink File create a symbolic link to a file | |
344 | syscall I/O,Binary execute an arbitrary system call | |
345 | sysopen File open a file, pipe, or descriptor | |
346 | sysread I/O,Binary fixed-length unbuffered input from a filehandle | |
347 | sysseek I/O,Binary position I/O pointer on handle used with sysread and syswrite | |
348 | system Process run a separate program | |
349 | syswrite I/O,Binary fixed-length unbuffered output to a filehandle | |
350 | tell I/O get current seekpointer on a filehandle | |
351 | telldir I/O get current seekpointer on a directory handle | |
352 | tie Objects bind a variable to an object class | |
353 | tied Objects get a reference to the object underlying a tied variable | |
354 | time Time return number of seconds since 1970 | |
355 | times Process,Time return elapsed time for self and child processes | |
356 | tr/// String transliterate a string | |
357 | truncate I/O shorten a file | |
358 | uc String return upper-case version of a string | |
359 | ucfirst String return a string with just the next letter in upper case | |
360 | umask File set file creation mode mask | |
361 | undef Misc remove a variable or function definition | |
362 | unlink File remove one link to a file | |
363 | unpack Binary,LIST convert binary structure into normal perl variables | |
364 | unshift ARRAY prepend more elements to the beginning of a list | |
365 | untie Objects break a tie binding to a variable | |
366 | use Modules,Namespace load a module and import its namespace | |
367 | use Objects load in a module at compile time | |
368 | utime File set a file's last access and modify times | |
369 | values HASH return a list of the values in a hash | |
370 | vec Binary test or set particular bits in a string | |
371 | wait Process wait for any child process to die | |
372 | waitpid Process wait for a particular child process to die | |
373 | wantarray Misc,Flow get void vs scalar vs list context of current subroutine call | |
374 | warn I/O print debugging info | |
375 | write I/O print a picture record | |
376 | y/// String transliterate a string |